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Finding the Fourth Proportional to 604,519.80, 906,779.70 and 272,743.80

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Solution

The fourth proportional to 604,519.80, 906,779.70 and 272,743.80 is: 409,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,519.80 : 906,779.70 = 272,743.80 : x
  2. Step 2: Convert to fraction form
    604,519.80/906,779.70 = 272,743.80/x
  3. Step 3: Cross multiply
    604,519.80x = 906,779.70 × 272,743.80
  4. Step 4: Simplify right side
    604,519.80x = 247,318,541,140.86
  5. Step 5: Solve for x
    x = 247,318,541,140.86/604,519.80
  6. Step 6: Final answer
    x = 409,115.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.